Measurements:
°C
°F
CURRENT WEATHER
08:18
Hilo
80°F
SW 3 mph
Feels like: 84°F
Precip: 18%
World Resorts USA Hilo Weather

7 Day Weather Forecast

08.05
wed
DAY
82°F
SW 8 mph
precip
13%
NIGHT
76°F
SW 3 mph
precip
34%
08.06
thu
DAY
82°F
SW 9 mph
precip
18%
NIGHT
74°F
S 4 mph
precip
22%
08.07
fri
DAY
82°F
SW 8 mph
precip
23%
NIGHT
74°F
SE 4 mph
precip
32%
08.08
sat
DAY
82°F
SW 9 mph
precip
8%
NIGHT
78°F
SW 2 mph
precip
73%
08.09
sun
DAY
82°F
W 9 mph
precip
65%
NIGHT
78°F
SW 3 mph
precip
62%
08.10
mon
DAY
82°F
SW 7 mph
precip
22%
NIGHT
78°F
W 2 mph
precip
27%
08.11
tue
DAY
82°F
SW 9 mph
precip
24%
NIGHT
76°F
NW 2 mph
precip
29%

Hilo Sea Water Temperature in August, °F

Select Year: 2025 2024 2023

The average sea surface temperature in August 2025 for Hilo was 26.6°F. The maximum and minimum values were 26.2°F and 27.0°F respectively.

Hilo on the Weather Map

Best Time to Visit Hilo
The most sunny months:
January 17 days
October 15 days
September 14 days
The most warm months:
September 81.3 °F
August 81.1 °F
October 81.0 °F
Warmest sea temperature:
September 83.7 °F
October 83.3 °F
August 83.1 °F
The most cold months:
March 75.8 °F
February 75.9 °F
April 76.0 °F
The most rainy months:
March 6 days
November 5 days
February 5 days
The most windy months:
March 8 mph
April 8 mph
August 8 mph
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